The Mountjoy Prison helicopter escape occurred on 31 October 1973 when three Provisional Irish Republican Army volunteers escaped from Mountjoy Prison in Dublin, Ireland, by boarding a hijacked helico
An Aérospatiale Alouette II, the type of helicopter used in the escape
RUC archive image (via the Public Record Office of Northern Ireland) taken following the November 1974 tunnel escape attempt. In this escape, three IRA volunteers escaped but were later apprehended in the Twinbrook estate. One IRA volunteer, Hugh Coney, was shot dead just outside the perimeter wall.